My father told me that he was considered too difficult a student (teach) ______ when he was young.

A．New York．
B．Los Angeles．
C．Washington．
D．San Francisco．

A．The adventure was worth the money but not the time．
B．The adventure was worth both the time and the money．
C．The adventure was not worth the time or the money．
D．The adventure was worth the time but not the money．